ALBANY — Rep. Bob Turner jumped into the race against US Sen. Kirsten Gillibrand yesterday, pledging to seek both the Republican and Conservative nominations.

Turner had planned to seek re-election to the Queens-Brooklyn seat of disgraced former Rep. Anthony Weiner, which he won in an upset in a special election last September.

But the district is expected to be eliminated in New York’s congressional redistricting.

“There is serious work to be done to get this economy back on track, and I will not walk away from that work now,” Turner said in a statement.

He faces an uphill battle. State Conservative Party Chairman Michael Long said lawyer Wendy Long — who’s also seeking the GOP nod and is no relation — “has really soaked up enthusiastically the support of my leaders up and down.”

She “was like a rock star” at a Conservative Party fund-raiser in Albany Monday night, he said.

He said he believes the best candidate against Gillibrand is a “qualified woman,” and said Wendy Long “has all the qualifications to take Kirsten Gillibrand on.”

Turner also has a big cash disadvantage.

Gillibrand had $8.1 million in her campaign account as of the end of last year, according to Federal Election Commission filings.

Turner had $72,600 — and $65,500 in debt.

Siena College poll spokesman Steven Greenberg said Gillibrand is “in a very strong position,” noting Siena’s last poll showed voters would re-elect her by 58-30 percent.

But Gillibrand wasted no time going on the attack.

Spokesman Glen Caplin slammed Turner as a former producer for conservative radio talk-show host Rush Limbaugh with a record of voting “to help protect tax breaks for millionaires and billionaires, raise Medicare premiums for seniors, and block efforts to put middle-class families back to work.”

Republican officials say Nassau County Comptroller George Maragos has lined up enough support to win a primary ballot spot at the state GOP convention Friday in Rochester.

But Maragos’ campaign owed $40,000 more at the end of last year than the $1.04 million he had on hand.